20111202021010 has 32 divisors (see below), whose sum is σ = 38393331098112. Its totient is φ = 7568577804480.

The previous prime is 20111202021007. The next prime is 20111202021023. The reversal of 20111202021010 is 1012020211102.

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, 716707354 + ... + 716735413.

It is an arithmetic number, because the mean of its divisors is an integer number (1199791596816).

Almost surely, 2^{20111202021010} is an apocalyptic number.

20111202021010 is a deficient number, since it is larger than the sum of its proper divisors (18282129077102).

20111202021010 is a wasteful number, since it uses less digits than its factorization.

20111202021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433442858.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20111202021010 its reverse (1012020211102), we get a palindrome (21123222232112).

The spelling of 20111202021010 in words is "twenty trillion, one hundred eleven billion, two hundred two million, twenty-one thousand, ten".