201220021101102 has 16 divisors (see below), whose sum is σ = 402444772081920. Its totient is φ = 67072552053752.

The previous prime is 201220021100977. The next prime is 201220021101119. The reversal of 201220021101102 is 201101120022102.

It is a super-2 number, since 2×201220021101102² (a number of 29 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 7 ways as a sum of consecutive naturals, for example, 196525152 + ... + 197546387.

It is an arithmetic number, because the mean of its divisors is an integer number (25152798255120).

Almost surely, 2^{201220021101102} is an apocalyptic number.

201220021101102 is an abundant number, since it is smaller than the sum of its proper divisors (201224750980818).

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

201220021101102 is a wasteful number, since it uses less digits than its factorization.

201220021101102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394156647.

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

Adding to 201220021101102 its reverse (201101120022102), we get a palindrome (402321141123204).

The spelling of 201220021101102 in words is "two hundred one trillion, two hundred twenty billion, twenty-one million, one hundred one thousand, one hundred two".