Search a number
-
+
122021010101 = 2832243192229
BaseRepresentation
bin111000110100100000…
…1001101101010110101
3102122221212001120011102
41301221001031222311
53444344334310401
6132020005415445
711546536321064
oct1615101155265
9378855046142
10122021010101
1147826751a01
121b79470a585
13b677b09833
145c979101db
15329261856b
hex1c6904dab5

122021010101 has 8 divisors (see below), whose sum is σ = 122507410080. Its totient is φ = 121534999632.

The previous prime is 122021010071. The next prime is 122021010121. The reversal of 122021010101 is 101010120221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122021010101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122021010121) 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, 538655 + ... + 730883.

It is an arithmetic number, because the mean of its divisors is an integer number (15313426260).

Almost surely, 2122021010101 is an apocalyptic number.

It is an amenable number.

122021010101 is a deficient number, since it is larger than the sum of its proper divisors (486399979).

122021010101 is a wasteful number, since it uses less digits than its factorization.

122021010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194755.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 122021010101 its reverse (101010120221), we get a palindrome (223031130322).

The spelling of 122021010101 in words is "one hundred twenty-two billion, twenty-one million, ten thousand, one hundred one".

Divisors: 1 283 2243 192229 634769 54400807 431169647 122021010101