2100021200222 has 32 divisors (see below), whose sum is σ = 3549568601088. Its totient is φ = 923159160000.

The previous prime is 2100021200197. The next prime is 2100021200231. The reversal of 2100021200222 is 2220021200012.

It is a junction number, because it is equal to n+sod(n) for n = 2100021200197 and 2100021200206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38522 + ... + 2049762.

It is an arithmetic number, because the mean of its divisors is an integer number (110924018784).

Almost surely, 2^{2100021200222} is an apocalyptic number.

2100021200222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2100021200222 is a deficient number, since it is larger than the sum of its proper divisors (1449547400866).

2100021200222 is a wasteful number, since it uses less digits than its factorization.

2100021200222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012816.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2100021200222 its reverse (2220021200012), we get a palindrome (4320042400234).

The spelling of 2100021200222 in words is "two trillion, one hundred billion, twenty-one million, two hundred thousand, two hundred twenty-two".