210101102121012 has 48 divisors (see below), whose sum is σ = 490775368199424. Its totient is φ = 69956640144000.

The previous prime is 210101102121011. The next prime is 210101102121067. The reversal of 210101102121012 is 210121201101012.

It is a happy number.

It is a super-2 number, since 2×210101102121012² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210101102120982 and 210101102121000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210101102121011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311672562 + ... + 312345942.

It is an arithmetic number, because the mean of its divisors is an integer number (10224486837488).

Almost surely, 2^{210101102121012} is an apocalyptic number.

It is an amenable number.

210101102121012 is an abundant number, since it is smaller than the sum of its proper divisors (280674266078412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210101102121012 is a wasteful number, since it uses less digits than its factorization.

210101102121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701960 (or 701958 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 210101102121012 its reverse (210121201101012), we get a palindrome (420222303222024).

The spelling of 210101102121012 in words is "two hundred ten trillion, one hundred one billion, one hundred two million, one hundred twenty-one thousand, twelve".