212021121102 has 16 divisors (see below), whose sum is σ = 484619705472. Its totient is φ = 60577463160.

The previous prime is 212021121097. The next prime is 212021121107. The reversal of 212021121102 is 201121120212.

It is an interprime number because it is at equal distance from previous prime (212021121097) and next prime (212021121107).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021121107) 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, 2524060924 + ... + 2524061007.

It is an arithmetic number, because the mean of its divisors is an integer number (30288731592).

Almost surely, 2^212021121102 is an apocalyptic number.

212021121102 is an abundant number, since it is smaller than the sum of its proper divisors (272598584370).

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

212021121102 is a wasteful number, since it uses less digits than its factorization.

212021121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5048121943.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212021121102 its reverse (201121120212), we get a palindrome (413142241314).

The spelling of 212021121102 in words is "two hundred twelve billion, twenty-one million, one hundred twenty-one thousand, one hundred two".