211212022021010 has 8 divisors (see below), whose sum is σ = 380181639637836. Its totient is φ = 84484808808400.

The previous prime is 211212022020997. The next prime is 211212022021043. The reversal of 211212022021010 is 10120220212112.

It can be written as a sum of positive squares in 2 ways, for example, as 202058293107841 + 9153728913169 = 14214721^2 + 3025513^2 .

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

It is a super-2 number, since 2×211212022021010² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211212022021010.

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, 10560601101041 + ... + 10560601101060.

Almost surely, 2^{211212022021010} is an apocalyptic number.

211212022021010 is a deficient number, since it is larger than the sum of its proper divisors (168969617616826).

211212022021010 is a wasteful number, since it uses less digits than its factorization.

211212022021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21121202202108.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211212022021010 its reverse (10120220212112), we get a palindrome (221332242233122).

The spelling of 211212022021010 in words is "two hundred eleven trillion, two hundred twelve billion, twenty-two million, twenty-one thousand, ten".