12021211332102 has 64 divisors (see below), whose sum is σ = 27627377541120. Its totient is φ = 3415871685024.

The previous prime is 12021211332089. The next prime is 12021211332121. The reversal of 12021211332102 is 20123311212021.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8914173 + ... + 10173735.

It is an arithmetic number, because the mean of its divisors is an integer number (431677774080).

Almost surely, 2^{12021211332102} is an apocalyptic number.

12021211332102 is an abundant number, since it is smaller than the sum of its proper divisors (15606166209018).

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

12021211332102 is a wasteful number, since it uses less digits than its factorization.

12021211332102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260817.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 12021211332102 its reverse (20123311212021), we get a palindrome (32144522544123).

The spelling of 12021211332102 in words is "twelve trillion, twenty-one billion, two hundred eleven million, three hundred thirty-two thousand, one hundred two".