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1010222421 = 31325903139
BaseRepresentation
bin111100001101101…
…100010101010101
32121101220121122020
4330031230111111
54032104104141
6244124323353
734014514605
oct7415542525
92541817566
101010222421
1147927606a
122423a3559
131313a9060
149824cc05
155da50266
hex3c36c555

1010222421 has 8 divisors (see below), whose sum is σ = 1450575840. Its totient is φ = 621675312.

The previous prime is 1010222407. The next prime is 1010222429. The reversal of 1010222421 is 1242220101.

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

It is not a de Polignac number, because 1010222421 - 214 = 1010206037 is a prime.

It is a super-2 number, since 2×10102224212 = 2041098679782202482, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1010222421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010222429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12951531 + ... + 12951608.

It is an arithmetic number, because the mean of its divisors is an integer number (181321980).

Almost surely, 21010222421 is an apocalyptic number.

It is an amenable number.

1010222421 is a deficient number, since it is larger than the sum of its proper divisors (440353419).

1010222421 is a wasteful number, since it uses less digits than its factorization.

1010222421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25903155.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1010222421 is about 31783.9963031712. The cubic root of 1010222421 is about 1003.3959282834.

Adding to 1010222421 its reverse (1242220101), we get a palindrome (2252442522).

It can be divided in two parts, 10102 and 22421, that added together give a palindrome (32523).

The spelling of 1010222421 in words is "one billion, ten million, two hundred twenty-two thousand, four hundred twenty-one".

Divisors: 1 3 13 39 25903139 77709417 336740807 1010222421