2021212210102 has 8 divisors (see below), whose sum is σ = 3033413175312. Its totient is φ = 1010074485000.

The previous prime is 2021212210091. The next prime is 2021212210111. The reversal of 2021212210102 is 2010122121202.

It is a happy number.

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

It is a super-2 number, since 2×2021212210102² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265805274 + ... + 265812877.

It is an arithmetic number, because the mean of its divisors is an integer number (379176646914).

Almost surely, 2^{2021212210102} is an apocalyptic number.

2021212210102 is a deficient number, since it is larger than the sum of its proper divisors (1012200965210).

2021212210102 is a wasteful number, since it uses less digits than its factorization.

2021212210102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531620054.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2021212210102 its reverse (2010122121202), we get a palindrome (4031334331304).

The spelling of 2021212210102 in words is "two trillion, twenty-one billion, two hundred twelve million, two hundred ten thousand, one hundred two".