21120022001102 has 4 divisors (see below), whose sum is σ = 31680033001656. Its totient is φ = 10560011000550.

The previous prime is 21120022001101. The next prime is 21120022001123. The reversal of 21120022001102 is 20110022002112.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21120022001101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5280005500274 + ... + 5280005500277.

It is an arithmetic number, because the mean of its divisors is an integer number (7920008250414).

Almost surely, 2^{21120022001102} is an apocalyptic number.

21120022001102 is a deficient number, since it is larger than the sum of its proper divisors (10560011000554).

21120022001102 is a wasteful number, since it uses less digits than its factorization.

21120022001102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10560011000553.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21120022001102 its reverse (20110022002112), we get a palindrome (41230044003214).

The spelling of 21120022001102 in words is "twenty-one trillion, one hundred twenty billion, twenty-two million, one thousand, one hundred two".