211020022121000 has 32 divisors (see below), whose sum is σ = 493786851765480. Its totient is φ = 84408008848000.

The previous prime is 211020022120991. The next prime is 211020022121023. The reversal of 211020022121000 is 121220020112.

It can be written as a sum of positive squares in 4 ways, for example, as 111131950783396 + 99888071337604 = 10541914^2 + 9994402^2 .

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, 105510010061 + ... + 105510012060.

Almost surely, 2^{211020022121000} is an apocalyptic number.

211020022121000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211020022121000 is an abundant number, since it is smaller than the sum of its proper divisors (282766829644480).

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

211020022121000 is a wasteful number, since it uses less digits than its factorization.

211020022121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211020022142 (or 211020022128 counting only the distinct ones).

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

Adding to 211020022121000 its reverse (121220020112), we get a palindrome (211141242141112).

The spelling of 211020022121000 in words is "two hundred eleven trillion, twenty billion, twenty-two million, one hundred twenty-one thousand".