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2120221201222 = 21955795294769
BaseRepresentation
bin11110110110100111000…
…010000001001101000110
321111200122212020122111101
4132312213002001031012
5234214203111414342
64302003254330314
7306116025566005
oct36664702011506
97450585218441
102120221201222
117481a9659733
122a2ab595999a
13124c22519b27
1474895336c3c
153a2425c93b7
hex1eda7081346

2120221201222 has 8 divisors (see below), whose sum is σ = 3347717686200. Its totient is φ = 1004315305824.

The previous prime is 2120221201211. The next prime is 2120221201223. The reversal of 2120221201222 is 2221021220212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×21202212012223 (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 2120221201222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120221201223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27897647347 + ... + 27897647422.

It is an arithmetic number, because the mean of its divisors is an integer number (418464710775).

Almost surely, 22120221201222 is an apocalyptic number.

2120221201222 is a deficient number, since it is larger than the sum of its proper divisors (1227496484978).

2120221201222 is a wasteful number, since it uses less digits than its factorization.

2120221201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55795294790.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2120221201222 its reverse (2221021220212), we get a palindrome (4341242421434).

The spelling of 2120221201222 in words is "two trillion, one hundred twenty billion, two hundred twenty-one million, two hundred one thousand, two hundred twenty-two".

Divisors: 1 2 19 38 55795294769 111590589538 1060110600611 2120221201222