2121211020102 has 16 divisors (see below), whose sum is σ = 4249145379072. Its totient is φ = 705949783560.

The previous prime is 2121211020101. The next prime is 2121211020119. The reversal of 2121211020102 is 2010201121212.

It is a super-3 number, since 3×2121211020102³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121211020101) 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, 280135018 + ... + 280142589.

It is an arithmetic number, because the mean of its divisors is an integer number (265571586192).

Almost surely, 2^{2121211020102} is an apocalyptic number.

2121211020102 is an abundant number, since it is smaller than the sum of its proper divisors (2127934358970).

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

2121211020102 is a wasteful number, since it uses less digits than its factorization.

2121211020102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560278243.

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

Adding to 2121211020102 its reverse (2010201121212), we get a palindrome (4131412141314).

The spelling of 2121211020102 in words is "two trillion, one hundred twenty-one billion, two hundred eleven million, twenty thousand, one hundred two".