2101121001210 has 128 divisors (see below), whose sum is σ = 6315184963584. Its totient is φ = 434638632960.

The previous prime is 2101121001179. The next prime is 2101121001211. The reversal of 2101121001210 is 121001211012.

It is not an unprimeable number, because it can be changed into a prime (2101121001211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1524279 + ... + 2554538.

It is an arithmetic number, because the mean of its divisors is an integer number (49337382528).

Almost surely, 2^{2101121001210} is an apocalyptic number.

2101121001210 is an abundant number, since it is smaller than the sum of its proper divisors (4214063962374).

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

2101121001210 is a wasteful number, since it uses less digits than its factorization.

2101121001210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4079068.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2101121001210 its reverse (121001211012), we get a palindrome (2222122212222).

The spelling of 2101121001210 in words is "two trillion, one hundred one billion, one hundred twenty-one million, one thousand, two hundred ten".